Moira Egan is an award-winning poet, a longtime Signal contributor, and an accomplished literary translator.  She’s also 50 years old and increasingly fussy about the thermostat.  Her poetry collection, Hot Flash Sonnets, gives a lyrically graceful, honest, and witty treatment to a subject that’s usually discussed in hushed tones and only among select company.  Egan visited recently with The Signal’s Aaron Henkin…